English Français العربية

Image Resize API

Official registry Media and design

Resize images from URL — PNG, JPEG, WebP output. x402 micropayment.

Source code Website Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (sse)
Claude Code 
claude mcp add --transport sse image-resize-api 'https://image-resize.api.klymax402.com/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "image-resize-api": {
            "type": "sse",
            "url": "https://image-resize.api.klymax402.com/mcp"
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. Image Resize API
  2. Quickstart -- MCP
  3. Quickstart -- HTTP (x402)
  4. Tools
  5. Example agent prompts
  6. Payment
  7. Part of klymax402
  8. License

Image Resize API

Resize images from URL -- custom width/height, format conversion (PNG/JPEG/WebP), aspect ratio preserved. Pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.

Part of the klymax402 marketplace -- 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base.

Quickstart -- MCP

Add to your MCP client config (Claude Desktop, Cursor, ElizaOS, etc.):

{
  "mcpServers": {
    "image-resize": {
      "url": "https://image-resize.api.klymax402.com/mcp"
    }
  }
}

Quickstart -- HTTP (x402)

curl -X POST "https://image-resize.api.klymax402.com/api/resize" \
  -H "Content-Type: application/json" \
  -d '{"url":"https://example.com"}'
# -> 402 Payment Required, with an x402 payment challenge in the response body

Any x402-aware client (@x402/fetch, x402-agent-tools, ATXP) handles the 402 -> sign -> retry cycle automatically.

Tools

ToolMethodPathPriceDescription
media_resize_imagePOST/api/resize$0.008Resize an image from URL
media_resize_image

Use this when you need to resize an image from a URL or convert its format. Returns the resized image as base64 with metadata in JSON.

Parameters

NameTypeRequiredDescription
urlstringyesURL of the image to resize
widthnumbernoTarget width in pixels (maintains aspect ratio if height is omitted)
heightnumbernoTarget height in pixels (maintains aspect ratio if width is omitted)
formatstringnoOutput format: 'png', 'jpeg', or 'webp' (default: png)

Example response:

{"image":"iVBORw0KGgo...","originalWidth":1920,"originalHeight":1080,"newWidth":800,"newHeight":450,"format":"webp","fileSizeBytes":24500}

When to use: creating thumbnails, optimizing images for web, preparing social media images, resizing for email templates, and batch image processing.

Not for: OCR text extraction (use media_extract_text_from_image), QR code generation (use utility_generate_qr_code), screenshots (use capture_screenshot).

Example agent prompts

  • "Resize an image from a URL or convert its format"

Payment

  • Protocol: x402 -- HTTP-native pay-per-call, no signup, no API key
  • Network: Base L2 (eip155:8453)
  • Asset: USDC
  • Facilitator: Coinbase CDP (primary), PayAI (fallback)
  • Also reachable via ATXP (OAuth-wrapped x402, RFC 9728 protected-resource metadata)

Part of klymax402

100 x402 micropayment APIs for AI agents -- one wallet, USDC on Base, zero signup.

License

MIT

Frequently asked questions

What is Image Resize API?

Resize images from URL — PNG, JPEG, WebP output. x402 micropayment.

How do I install Image Resize API?

It runs as a remote server. In Claude Code: claude mcp add --transport sse image-resize-api 'https://image-resize.api.klymax402.com/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Image Resize API need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is Image Resize API open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains Image Resize API?

It is published by Br0ski777. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.